Lawn-mower



3 VSheets-Sheet 1.

(No Model.)

H. A.. GROUX.

LAWN MOWBR.

Patented Feb. Z3, 1886.

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(No Model.) 3 sheets-'sheet 2.

H. A. GROUX.

LAWN MOWER.

No. 336,639. Patented Feb. 23, 1886.

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(No Model.) 3 sheets-sheen s. H. A. GROUX.

LAWN Mo-WBR. Y

No. 336,639. y Patented Feb. 23, 1886.

UNITED STATES PATENT OFFICE.

HENRY A. GROUX, OF )'IONTCLAIR, NEW' JERSEY.

LAWN-MOWER.

SPECIFICATION forming part of Letters Patent No. 336,639, dated February 23, 188C.

Application filed December .12, 1884. Serial No. 130,905. (No model.)

To @ZZ A[e7/.0711. it 11i/ay conce-rn.-

Be it known that I, HENRY A. GEOUX. of Montclair, in the county of Essex and State of New Jersey, have invented an Improve nient in Lawn-Mowers, of which the following is a specification. 'i

My mower is adapted to lawns and borders. I make use of a standing serrated cutter and a reciprocating eutterbar similar to those before employed in mowiiig-machines and handmowers; but I connect thecutter to two frames that are near each other and carry the crossshafts, driving-wheels, gearing, and a revolving spiral cam that acts directly upon the cut-- ter-bar, and I provide adjustable supportingrollers for varying the height of the cutter bars. By this construction I am able to place the driving-wheels and snpportingrollers suficiently near to each other to run upon narrow borders. The machine is light and cheap, and I am enabled to incase the gearing so as to prevent grass and other material lodging in the gearing, and the parts are easily kept clean and in repair.

In the drawings, Figure l is a plan view of the machine. Fig. 2 is a section transversely ofthe shafts and cutter-bars. Figs. 3 and I arc sections at the hub of one of the drivingwheels. Figs. 5 and 6 are sections through the stock of one ofthe supporting-wheels; and Fig. 7 represents a modification ofthe cam.

The cutter A is of steel with serrated edge, and the cutter-bar I3 is similarly made, the bevel ofthe cutting-edges being upward on A 3 and downward on B, so that the cuttingedges come together like shears. These cutters are kept in contact by the screws (l, and springpressers I). These screws a may pass through slots in the cutter-bar I3, as seenin Fig. l, or they may be at the ends of the cutter A, and the spring-pressers b extend over the ends of the cutter-bar B, as seen in Fig. 7.

The frames D D are provided with a bolt, Il, to connect them and hold them at the proper distances apart, and there are footpieces d that project at the front ends, and upon which the cutter A rests and is secured by screws R, passing up into the cutter.

The wheels F are upon the ends ofthe shaft f, that passes across through the frames D D.

Each wheel :is held upon the shaft or axlef by a nut or other suitable device, and the wheel is loose upon the shaft and provided with internal ratchet-teeth at t, and the shaft f is recessed or mortised to receive the springv pawl k. Each end of the shaft being thus fitted, the wheels will rotate the shaft j when the mower is being pushed forward, but either wheel can turn backwardly or slower than the shaft, the spring-pawl yielding in so deine'.

Upon the shaft f, between the frames D D', there is a gearwheel, L, gearing into a pinion, N, upon the intermediate cross-shaft, n, and the wheel M is connected with the pinion. and revolves the pinion o upon the cam-shaft p. The cam r is circular, and it has either a spiral rib, as in Fig. l, or a zigzag groove, as in Fig. 7, and upon the cutterbar there is a stud, s, entering the groove, or two studs-one at each side of the ribbed cam. In either case, the revolving cam gives a rapid reciprocating motion directly to the cutter-bar, and there no unnecessary friction or loss of motion.

The handle of the mower is made with a fork, t, at the lower end, terminating in eyes that are pla-ccd 'over the studs o, upon the inner surfaces of the frames D D', and when not in use the handle rests against the cross bolt E.

The supporting-rollers w are upon gudgeons projecting from the stoclepieces q, and there are in the frames D D' vertical grooves or channels that receive these stocks q, and the parts are slotted for the reception of the bolts 3. By adj Listing the stocks and clamping them to the frames the rollers yw are made to support the frame an?" cutter-bars, so that the grass is cut at any desired height.

I claim as my invention" l. rIhe combination, with the cuttenbars A B, of the frames having the foot-pieces at the forward ends a-nd the screws by which the cutter A is secured, the circular revolving cam having spiral groove or rib, the stud or studs on the cutter-bar, and the wheels and gearing for giving motion to the parts, and the adjusting-rollers 1u, stocks (l, and bolts, substantially' as set forth.

2. In a lawn-mower, the frames D D', adjacent to cach other, in combination with the IOO t driving-shaft passing tl'noug'h such frames, l connecting the Gutterlmr to the cutter, snbthe driving-\vhee1s outside the frames, the stantially as seb forth.

1o ratehets and spring-pani connections to the 1 Signed by me this 17th day of December,

shaft, the gear-Wheels L M, pinions N O, and l A. D. 11884.

revolving cam between the frames, the cutter I HENRY A. GROUX. A, fastened to the frames D D, the cutter-bar Vitnesses:

resting upon the cutter and receiving motion GEO. T. PINCKNEY,

from the earn7 and the bolts and fingers for VrLLIAM G. MOTT. 

